Ball Valve Seat Materials

1. Virgin TFE Virgin TFE is a good all-around, general purpose seating material. TFE has outstanding resistance to chemical attack by a broad spectrum of organic chemicals, inorganic chemicals and solvents and is generally considered chemically inert. TFE is a selflubricating polymer with a very low coefficient of friction, which makes an excellent seating material…

Function and service considerations

Selection Valves serve the purpose of controlling the fluids in building services piping. Valves are produced in a variety of design types and materials. Proper selection is important to ensure the most efficient, cost-effective and long-lasting systems. Function Valves are designed to perform four principal functions: 1. Starting and stopping the flow 2. Regulating (throttling)…

Valve technical support

1.Leakage of stuffing Causes: 1. Incorrect choice of stuffing: does not resist corrosion of medium, high pressure or vacuum of valve, high or low temperature; 2. Incorrect installation of stuffing: use small accessories instead of big ones, bad spiral contact, upper tight & lower loose; 3. Stuffing is beyond the lifetime so it is aged…